Specifications

CONTROLLER (Feb. 2009)
CNTR-77
CONTROLLER
DATA U4
4. SYSTEM COMPONENT
It is possible to have ON/OFFcontrol by turningthe indoorunit power on andoff. You can select functionsby set-
tingthe DipSW1-9and1-10 on the indoorunit.
TypesofON/OFFcontrol(indoorunitsettings)
Descriptionofwhenusingdistant/localswitching(CN32)
System example
Limitationstocombiningsystemcontrols
Function
Operationwhenindoorunitrecovers
SettingSW2(note1)
All auto
restart
Allindoorunitswillalways restartregardlessofthestatethatwas be-
fore the power was turnedoff(POWEROFF)(after5minutes).
ON
Auto
recovery
All OFF
Indoorunitswhichareoperatedbefore the power was turnedoff
(POWEROFF)willrestart(after5minutes).
ON
OFF
910
Operation staysstoppedregardlessofthestatethatwasbefore the
power was turnedoff.
OFF
OFF
OFF
Note 1. Thedipswitchsettingforallunitsintheindoorunitgroupisrequired.
Note 2.Donotcut-offthepowertotheoutdoorunit.Ifyoudo,itwilldisconnectthepower to the crank-
caseheateroftheoutdoorunitandthatcouldcausedamagetothecompressor.
Note 3. ThiscannotbeappliedtothepowerON/OFFofthedrainpumpandhumidifierequipment.
When the powertotheoutdoorunitiscut-offforalongtime,thecrankcaseheaterfor the compressor also stops.Ifthe
compressor is startedsoonafterthepowerisrestored,thereisachancethatafault will occur in the compressor.
Whenusingtheabovefunction,make sure the powertotheoutdoorunitswillnotbecut-off.
1:PulseON/OFF,PowerON/OFFandautomaticrecovercanonlybeusedwhenthedistant/localsetting
(CN32) is set to local. Therefore,always avoidthisfunctionwhencombiningcontrol.
Controlcombiningdistant/local
PulseON/OFF
HAON/OFF(JEMA)
PowerON/OFF
Automatic recover
1
2
3
4
5
Indoorunit
power supply
Outdoorunit
power supply
Switch
Outdoorunit
Indoorunit
Local
remote
controller
It is possible to haveON/OFFcontrolforeachindoorunit(orgroup)bydipswitches9and10(SW1-9,SW1-10)
oftheindoorunit.
Remotecontrollerdisplay/operation
SW2
ON/OFF
SW1
Local switching
Description PulseON/OFF PowerON/OFF Automaticrecover
Controlcombining
distant/local
1 1 1
Itdisplays"CENTRALLYCONTROLLED",while
thestateisdistant.
ItprohibitsON/OFFoperationofremote
controller.
The operation permit
OFF
ON
ON
OFF
OFF
ON
CN32
CN51
CN51
-
-
Local/Permit
Distant/Stop
Distant/Operate
State